The deal, still contingent upon Silva passing a medical, includes Sevilla paying €5m to take the forward on loan this season and between €30m-35m to keep him a year from now, according to multiple reports.

They had hoped to take Chelsea's Michy Batshuayi on loan this season, but Batshuayi instead joined Valencia on Friday on a one-year loan.

Silva, 22, scored 20 goals in 41 appearances in all competitions for Porto in 2016-17, and he made three appearances, with one start, for Portugal at the World Cup this summer.